@article{SMJ2_2013_39_3-4_a4,
     author = {Frankowska, H\'el\`ene and Hoehener, Daniel and Tonon, Daniela},
     title = {A {Second-Order} {Maximum} {Principle} in {Optimal} {Control} {Under} {State} {Constraints}},
     journal = {Serdica Mathematical Journal},
     pages = {233--270},
     publisher = {mathdoc},
     volume = {39},
     number = {3-4},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SMJ2_2013_39_3-4_a4/}
}